The amino acid L-arginine is naturally taken into the body through consumption of nuts, poultry, red meat, fish, and dairy products. It is used by the body to create protein. Synthetic versions of L-arginine are also available. It is a precursor of nitric oxide, which plays a role in keeping blood vessels dilated and flexible.
- In the body L-arginine is converted into nitric oxide which expands blood vessels.1 For that reason it plays a role in supporting the heart and circulatory system, including maintenance of normal blood pressure.
- It helps the body get rid of waste products such as ammonia
- It stimulates the creation of insulin by the pancreas
- It supports kidney functioning capacity.
- It is an anti-inflammatory agent.
- Combined with other drugs, it is used in treating a number of conditions ranging from migraines to cancer.
- Combined with other amino acids, it is used in treating side effect weight loss.
- Combined with ribonucleic acid and an omega-3 fatty acid, eicosapentaenoic acid, it improves healing of wounds.
- L-arginine also naturally stimulates the release of other enzymes and hormones in the body, such as insulin and growth hormone
- Other claims which NIH considers need more evidence are that it helps with migraines, dementia, athletic performance, male infertility and the common cold.
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